[INFO] fetching crate const-exhaustive 0.1.1...
[INFO] checking const-exhaustive-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate const-exhaustive 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate const-exhaustive 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate const-exhaustive 0.1.1
[INFO] tweaked toml for crates.io crate const-exhaustive 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate const-exhaustive 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b7c9b08daf2af7cc8f6dac472b51b0de9e7651d36d139aac0d3f0cad931f648
[INFO] running `Command { std: "docker" "start" "-a" "2b7c9b08daf2af7cc8f6dac472b51b0de9e7651d36d139aac0d3f0cad931f648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b7c9b08daf2af7cc8f6dac472b51b0de9e7651d36d139aac0d3f0cad931f648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7c9b08daf2af7cc8f6dac472b51b0de9e7651d36d139aac0d3f0cad931f648", kill_on_drop: false }`
[INFO] [stdout] 2b7c9b08daf2af7cc8f6dac472b51b0de9e7651d36d139aac0d3f0cad931f648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 725d6368a174c691bb8424c0176035968768b643a32bb3a36d4cd0bc8a1d6598
[INFO] running `Command { std: "docker" "start" "-a" "725d6368a174c691bb8424c0176035968768b643a32bb3a36d4cd0bc8a1d6598", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking generic-array v1.3.5
[INFO] [stderr]    Compiling variadics_please v1.1.0
[INFO] [stderr]    Compiling const-exhaustive-derive v0.1.1
[INFO] [stderr]     Checking const-exhaustive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> tests/impls.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |     assert_all([Ok::<_, Infallible>(false), Ok(true)]);
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> tests/impls.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |     assert_all([Ok::<_, Infallible>(false), Ok(true)]);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> tests/impls.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |     assert_all([Ok::<_, Infallible>(false), Ok(true)]);
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `const-exhaustive` (test "impls") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "725d6368a174c691bb8424c0176035968768b643a32bb3a36d4cd0bc8a1d6598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725d6368a174c691bb8424c0176035968768b643a32bb3a36d4cd0bc8a1d6598", kill_on_drop: false }`
[INFO] [stdout] 725d6368a174c691bb8424c0176035968768b643a32bb3a36d4cd0bc8a1d6598